Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-40S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 450mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ160 mm
- Stroke450 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-40S
The AirTAC SAIJ160X450-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 450 mm stroke that can be fine-tuned backward by up to 40 mm, yielding a usable travel window of 410 to 450 mm. Delivering massive thrust, it generates 18095 N of push force at 0.9 MPa. The robust 40 mm SUS304 stainless steel rod (code B) handles heavy loads and provides excellent corrosion resistance.
This variant includes a magnetic piston (-S) for position sensing with AirTAC CMSE reed or DMSE electronic switches. It features a PT tapered port thread and variable air cushions at both ends to decelerate the heavy 160 mm bore piston smoothly. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×450 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-40S Is Used
Press Tonnage Setup
Dial in the exact 410-450 mm travel window during heavy press commissioning to accommodate varying material thicknesses without external stopper blocks.
Product Changeover Lines
Rapidly adjust the retract end-position by up to 40 mm to handle different package sizes on automated packaging and conveying systems.
Heavy Material Handling
Leverage the 18095 N push force and SUS304 rod to move heavy pallets or industrial components through variable stroke cycles.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-40S the Right Cylinder?
Choose this 160 mm bore cylinder when your application requires 18095 N of push force at 0.9 MPa. If you need less force, stepping down to the 125 mm bore yields 11045 N at 0.9 MPa, while stepping up to the 200 mm bore provides 28274 N. The adjustable stroke is ideal for machine setup and product changeover, allowing you to fine-tune the end position without swapping cylinders or adding external stops.
Because the 450 mm stroke is substantial, the 40 mm rod and M36x2 thread provide necessary rigidity, but an external guide is recommended to prevent side-load damage on long unsupported travels. The rear adjuster acts strictly as a mechanical stop and does not hold the load without live air; for true load-holding without pressure, use an AirTAC SAIL locking cylinder, a BSAI clamp-lock, or an external rod lock. This SAIJ model is dimensionally interchangeable per ISO 15552 and uses the reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX450-40S FAQ
At 0.9 MPa operating pressure, this 160 mm bore cylinder provides 18095 N of push force and 9425 N of pull force. At the maximum 1.0 MPa, it achieves 2050 kgf.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the effective stroke from 450 mm down to 410 mm. It only sets the travel end and does not lock the load without live air pressure.
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